The coefficient of linear expansion of a metal rod is 1.6×10⁻⁵ per °C. What will be the change in length of a 2 m rod when the temperature changes from 20°C to 50°C?

0.96 mm

0.96 mm

0%

1.2 mm

1.2 mm

0%

1.6 mm

1.6 mm

0%

2.4 mm

2.4 mm

0%